Begin making DesHawkAPI

desmume/src/frontend/windows/DeSmuME.vcxproj

@@ -306,6 +306,7 @@
     <ClCompile Include="console.cpp" />
     <ClCompile Include="CWindow.cpp" />
     <ClCompile Include="ddraw.cpp" />
+    <ClCompile Include="DesHawkAPI.cpp" />
     <ClCompile Include="display.cpp" />
     <ClCompile Include="FEX_Interface.cpp" />
     <ClCompile Include="File_Extractor\7z_C\7zAlloc.c" />

desmume/src/frontend/windows/DeSmuME.vcxproj.filters

@@ -930,6 +930,7 @@
     <ClCompile Include="display.cpp">
       <Filter>frontend\Windows</Filter>
     </ClCompile>
+    <ClCompile Include="DesHawkAPI.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\utils\guid.h">

desmume/src/frontend/windows/DesHawkAPI.cpp

@@ -0,0 +1,67 @@
+/*
+	Copyright (C) 2006 Theo Berkau
+	Copyright (C) 2006-2019 DeSmuME team
+
+	This file is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 2 of the License, or
+	(at your option) any later version.
+
+	This file is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with the this software.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define DLL extern "C" __declspec(dllexport)
+
+// TOOD: The "main" files (and others) should probably be excluded from this project and the relevant code copied/refactored.
+#include "main.h"
+
+// emulator core
+#include "NDSSystem.h"
+#include "SPU.h"
+#include "slot1.h"
+#include "slot2.h"
+#include "movie.h"
+
+DLL void Init_NDS()
+{
+	InitializeCriticalSection(&win_execute_sync);
+	CommonSettings.num_cores = 1; // is this necessary?
+
+	Desmume_InitOnce();
+	NDS_Init();
+
+	paused = FALSE; // is this necessary?
+	execute = TRUE;
+	SPU_Pause(0);
+
+	CommonSettings.use_jit = true;
+	CommonSettings.jit_max_block_size = 100;
+
+	slot1_Init();
+	slot2_Init();
+	slot2_Change(NDS_SLOT2_NONE);
+
+	cur3DCore = GPU3D_SWRAST;
+	GPU->Change3DRendererByID(GPU3D_SWRAST);
+
+	// sound
+	EnterCriticalSection(&win_execute_sync);
+	int spu_ret = SPU_ChangeSoundCore(SNDCORE_DUMMY, DESMUME_SAMPLE_RATE * 8 / 60);
+	LeaveCriticalSection(&win_execute_sync);
+	SPU_SetVolume(100);
+}
+DLL void DeInit_NDS()
+{
+	NDS_DeInit();
+}
+
+DLL int GetFrameCount()
+{
+	return currFrameCounter;
+}